I received this email from Google:
http://www.ubicas.es/: Googlebot can’t access your site
Over the last 24 hours, Googlebot encountered 1 errors while attempting to access your robots.txt. To ensure that we didn’t crawl any pages listed in that file, we postponed our crawl. Your site’s overall robots.txt error rate is 50.0%.
¿How can I fix it?
Hey!
Check out this topics in the WP forums:
https://wordpress.org/support/topic/problem-with-google-webmaster-tool
https://wordpress.org/support/topic/robotstxt-issue
Please note that this is not a theme issue.
Regards,
Josue